Smart P-Hive Entrance Control System

Managing beehive entrances is critical throughout the season. From granting full flight access during high nectar flow to narrowing the opening for wasp defense in late summer or closing it for transport. Doing this manually requires being present at the apiary at specific times of day.

The P-Hive Smart Gate automates this process! Designed specifically as an upgrade for the P-Hive system, this motor-driven hub mounts directly onto the front face to actuate gear-rimmed entrance discs via a central drive pinion.

Whether triggered by a timer, temperature sensor, or micro-controller (e.g., ESP32 / Arduino), your hive can now automatically protect itself against hornets at dusk or open up for maximum airflow during intense summer heat.

Key Features & Mechanics

•  Direct-Drive Gear Train: A central gear transfers rotational force directly to the surrounding entrance discs for smooth, synchronized movement.

• Top-Mounted NEMA Motor Position: The stepper motor sits directly above the central gear axis, keeping the footprint compact and ensuring high mechanical leverage without blocking bee flight paths.

•  Non-Destructive Mount: Designed to fit securely onto the P-Hive front.

• Smart Ecosystem Compatible: Can be wired to a simple micro-controller (ESP32, Arduino Nano) with a TMC2209 or A4988 driver for automated time/temperature control.

Recommended Print Settings

To withstand direct outdoor exposure, summer heat, and hive propolis, do not print this in PLA.

• Material: ASA or PETG (ASA is preferred for superior UV and weather resistance).

• Layer Height: 0.20 mm

• Infill: 25% – 30% (Gyroid or Cubic for structural rigidity)

• Perimeters/Walls: 3–4 walls for gear tooth strength

• Supports: Not required 

Hardware Required

• 1x NEMA 17 Pancake Stepper Motor (As is might get wet, there are some waterproof stepper motors)

• 8x M3 x 10mm Countersunk

• 2x M5 x ~30mm mounts Housing to Beehive. 

• 1x Micro-controller + Motor Driver (Needs water proofing)

Caution / Disclaimer:

• This design is currently a proof of concept. As I do not own an actual physical P-Hive, the dimensions and fitments are based on visual guides from this entrance . Minor adjustments to tolerances may be necessary when fitting to a physical hive. If you print this, feedback and fitment test notes are highly appreciated!